nmode's Git Repositories - signal-cli/blob - src/main/java/org/asamk/signal/manager/Manager.java

   1 /*
   2   Copyright (C) 2015-2020 AsamK and contributors
   3
   4   This program is free software: you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation, either version 3 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal.manager;
  18
  19 import com.fasterxml.jackson.databind.ObjectMapper;
  20
  21 import org.asamk.signal.storage.SignalAccount;
  22 import org.asamk.signal.storage.contacts.ContactInfo;
  23 import org.asamk.signal.storage.groups.GroupInfo;
  24 import org.asamk.signal.storage.groups.JsonGroupStore;
  25 import org.asamk.signal.storage.profiles.SignalProfile;
  26 import org.asamk.signal.storage.profiles.SignalProfileEntry;
  27 import org.asamk.signal.storage.protocol.JsonIdentityKeyStore;
  28 import org.asamk.signal.util.IOUtils;
  29 import org.asamk.signal.util.Util;
  30 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  31 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  32 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  33 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  34 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  35 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  36 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  37 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  38 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  39 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  40 import org.signal.libsignal.metadata.SelfSendException;
  41 import org.signal.libsignal.metadata.certificate.InvalidCertificateException;
  42 import org.signal.zkgroup.InvalidInputException;
  43 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  44 import org.signal.zkgroup.profiles.ProfileKey;
  45 import org.whispersystems.libsignal.IdentityKey;
  46 import org.whispersystems.libsignal.IdentityKeyPair;
  47 import org.whispersystems.libsignal.InvalidKeyException;
  48 import org.whispersystems.libsignal.InvalidMessageException;
  49 import org.whispersystems.libsignal.InvalidVersionException;
  50 import org.whispersystems.libsignal.ecc.Curve;
  51 import org.whispersystems.libsignal.ecc.ECKeyPair;
  52 import org.whispersystems.libsignal.ecc.ECPublicKey;
  53 import org.whispersystems.libsignal.state.PreKeyRecord;
  54 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  55 import org.whispersystems.libsignal.util.KeyHelper;
  56 import org.whispersystems.libsignal.util.Medium;
  57 import org.whispersystems.libsignal.util.Pair;
  58 import org.whispersystems.libsignal.util.guava.Optional;
  59 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  60 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  61 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  62 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  63 import org.whispersystems.signalservice.api.crypto.InvalidCiphertextException;
  64 import org.whispersystems.signalservice.api.crypto.ProfileCipher;
  65 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  66 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccess;
  67 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
  68 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  69 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  70 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  71 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  72 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  73 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  74 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  75 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
  76 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
  77 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  78 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
  79 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
  80 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  81 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload;
  82 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload.StickerInfo;
  83 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
  84 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
  85 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
  86 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
  87 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
  88 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
  89 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
  90 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
  91 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
  92 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
  93 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
  94 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
  95 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
  96 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
  97 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
  98 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  99 import org.whispersystems.signalservice.api.push.exceptions.EncapsulatedExceptions;
 100 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 101 import org.whispersystems.signalservice.api.push.exceptions.NetworkFailureException;
 102 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 103 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 104 import org.whispersystems.signalservice.api.util.SleepTimer;
 105 import org.whispersystems.signalservice.api.util.StreamDetails;
 106 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 107 import org.whispersystems.signalservice.api.util.UuidUtil;
 108 import org.whispersystems.signalservice.internal.configuration.SignalServiceConfiguration;
 109 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 110 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 111 import org.whispersystems.signalservice.internal.push.VerifyAccountResponse;
 112 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 113 import org.whispersystems.signalservice.internal.util.Hex;
 114 import org.whispersystems.util.Base64;
 115
 116 import java.io.Closeable;
 117 import java.io.File;
 118 import java.io.FileInputStream;
 119 import java.io.FileNotFoundException;
 120 import java.io.FileOutputStream;
 121 import java.io.IOException;
 122 import java.io.InputStream;
 123 import java.io.OutputStream;
 124 import java.net.URI;
 125 import java.net.URISyntaxException;
 126 import java.net.URLEncoder;
 127 import java.nio.file.Files;
 128 import java.nio.file.Paths;
 129 import java.nio.file.StandardCopyOption;
 130 import java.util.ArrayList;
 131 import java.util.Arrays;
 132 import java.util.Collection;
 133 import java.util.Collections;
 134 import java.util.Date;
 135 import java.util.HashSet;
 136 import java.util.LinkedList;
 137 import java.util.List;
 138 import java.util.Locale;
 139 import java.util.Objects;
 140 import java.util.Set;
 141 import java.util.UUID;
 142 import java.util.concurrent.ExecutionException;
 143 import java.util.concurrent.ExecutorService;
 144 import java.util.concurrent.TimeUnit;
 145 import java.util.concurrent.TimeoutException;
 146 import java.util.stream.Collectors;
 147 import java.util.zip.ZipEntry;
 148 import java.util.zip.ZipFile;
 149
 150 import static org.asamk.signal.manager.ServiceConfig.capabilities;
 151
 152 public class Manager implements Closeable {
 153
 154     private final SleepTimer timer = new UptimeSleepTimer();
 155     private final SignalServiceConfiguration serviceConfiguration;
 156     private final String userAgent;
 157
 158     private final SignalAccount account;
 159     private final PathConfig pathConfig;
 160     private SignalServiceAccountManager accountManager;
 161     private SignalServiceMessagePipe messagePipe = null;
 162     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 163     private boolean discoverableByPhoneNumber = true;
 164
 165     public Manager(SignalAccount account, PathConfig pathConfig, SignalServiceConfiguration serviceConfiguration, String userAgent) {
 166         this.account = account;
 167         this.pathConfig = pathConfig;
 168         this.serviceConfiguration = serviceConfiguration;
 169         this.userAgent = userAgent;
 170         this.accountManager = createSignalServiceAccountManager();
 171
 172         this.account.setResolver(this::resolveSignalServiceAddress);
 173     }
 174
 175     public String getUsername() {
 176         return account.getUsername();
 177     }
 178
 179     public SignalServiceAddress getSelfAddress() {
 180         return account.getSelfAddress();
 181     }
 182
 183     private SignalServiceAccountManager createSignalServiceAccountManager() {
 184         GroupsV2Operations groupsV2Operations;
 185         try {
 186             groupsV2Operations = new GroupsV2Operations(ClientZkOperations.create(serviceConfiguration));
 187         } catch (Throwable ignored) {
 188             groupsV2Operations = null;
 189         }
 190         return new SignalServiceAccountManager(serviceConfiguration,
 191                 new DynamicCredentialsProvider(account.getUuid(), account.getUsername(), account.getPassword(), null, account.getDeviceId()),
 192                 userAgent,
 193                 groupsV2Operations,
 194                 timer);
 195     }
 196
 197     private IdentityKeyPair getIdentityKeyPair() {
 198         return account.getSignalProtocolStore().getIdentityKeyPair();
 199     }
 200
 201     public int getDeviceId() {
 202         return account.getDeviceId();
 203     }
 204
 205     private String getMessageCachePath() {
 206         return pathConfig.getDataPath() + "/" + account.getUsername() + ".d/msg-cache";
 207     }
 208
 209     private String getMessageCachePath(String sender) {
 210         if (sender == null || sender.isEmpty()) {
 211             return getMessageCachePath();
 212         }
 213
 214         return getMessageCachePath() + "/" + sender.replace("/", "_");
 215     }
 216
 217     private File getMessageCacheFile(String sender, long now, long timestamp) throws IOException {
 218         String cachePath = getMessageCachePath(sender);
 219         IOUtils.createPrivateDirectories(cachePath);
 220         return new File(cachePath + "/" + now + "_" + timestamp);
 221     }
 222
 223     public static Manager init(String username, String settingsPath, SignalServiceConfiguration serviceConfiguration, String userAgent) throws IOException {
 224         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 225
 226         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 227             IdentityKeyPair identityKey = KeyHelper.generateIdentityKeyPair();
 228             int registrationId = KeyHelper.generateRegistrationId(false);
 229
 230             ProfileKey profileKey = KeyUtils.createProfileKey();
 231             SignalAccount account = SignalAccount.create(pathConfig.getDataPath(), username, identityKey, registrationId, profileKey);
 232             account.save();
 233
 234             return new Manager(account, pathConfig, serviceConfiguration, userAgent);
 235         }
 236
 237         SignalAccount account = SignalAccount.load(pathConfig.getDataPath(), username);
 238
 239         Manager m = new Manager(account, pathConfig, serviceConfiguration, userAgent);
 240
 241         m.migrateLegacyConfigs();
 242
 243         return m;
 244     }
 245
 246     private void migrateLegacyConfigs() {
 247         // Copy group avatars that were previously stored in the attachments folder
 248         // to the new avatar folder
 249         if (JsonGroupStore.groupsWithLegacyAvatarId.size() > 0) {
 250             for (GroupInfo g : JsonGroupStore.groupsWithLegacyAvatarId) {
 251                 File avatarFile = getGroupAvatarFile(g.groupId);
 252                 File attachmentFile = getAttachmentFile(new SignalServiceAttachmentRemoteId(g.getAvatarId()));
 253                 if (!avatarFile.exists() && attachmentFile.exists()) {
 254                     try {
 255                         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 256                         Files.copy(attachmentFile.toPath(), avatarFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 257                     } catch (Exception e) {
 258                         // Ignore
 259                     }
 260                 }
 261             }
 262             JsonGroupStore.groupsWithLegacyAvatarId.clear();
 263             account.save();
 264         }
 265         if (account.getProfileKey() == null) {
 266             // Old config file, creating new profile key
 267             account.setProfileKey(KeyUtils.createProfileKey());
 268             account.save();
 269         }
 270     }
 271
 272     public void checkAccountState() throws IOException {
 273         if (account.isRegistered()) {
 274             if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 275                 refreshPreKeys();
 276                 account.save();
 277             }
 278             if (account.getUuid() == null) {
 279                 account.setUuid(accountManager.getOwnUuid());
 280                 account.save();
 281             }
 282         }
 283     }
 284
 285     public boolean isRegistered() {
 286         return account.isRegistered();
 287     }
 288
 289     public void register(boolean voiceVerification) throws IOException {
 290         account.setPassword(KeyUtils.createPassword());
 291
 292         // Resetting UUID, because registering doesn't work otherwise
 293         account.setUuid(null);
 294         accountManager = createSignalServiceAccountManager();
 295
 296         if (voiceVerification) {
 297             accountManager.requestVoiceVerificationCode(Locale.getDefault(), Optional.absent(), Optional.absent());
 298         } else {
 299             accountManager.requestSmsVerificationCode(false, Optional.absent(), Optional.absent());
 300         }
 301
 302         account.setRegistered(false);
 303         account.save();
 304     }
 305
 306     public void updateAccountAttributes() throws IOException {
 307         accountManager.setAccountAttributes(account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, account.getRegistrationLockPin(), account.getRegistrationLock(), getSelfUnidentifiedAccessKey(), false, capabilities, discoverableByPhoneNumber);
 308     }
 309
 310     public void setProfile(String name, File avatar) throws IOException {
 311         try (final StreamDetails streamDetails = avatar == null ? null : Utils.createStreamDetailsFromFile(avatar)) {
 312             accountManager.setVersionedProfile(account.getUuid(), account.getProfileKey(), name, streamDetails);
 313         }
 314     }
 315
 316     public void unregister() throws IOException {
 317         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 318         // If this is the master device, other users can't send messages to this number anymore.
 319         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 320         accountManager.setGcmId(Optional.absent());
 321
 322         account.setRegistered(false);
 323         account.save();
 324     }
 325
 326     public List<DeviceInfo> getLinkedDevices() throws IOException {
 327         List<DeviceInfo> devices = accountManager.getDevices();
 328         account.setMultiDevice(devices.size() > 1);
 329         account.save();
 330         return devices;
 331     }
 332
 333     public void removeLinkedDevices(int deviceId) throws IOException {
 334         accountManager.removeDevice(deviceId);
 335         List<DeviceInfo> devices = accountManager.getDevices();
 336         account.setMultiDevice(devices.size() > 1);
 337         account.save();
 338     }
 339
 340     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 341         Utils.DeviceLinkInfo info = Utils.parseDeviceLinkUri(linkUri);
 342
 343         addDevice(info.deviceIdentifier, info.deviceKey);
 344     }
 345
 346     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 347         IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 348         String verificationCode = accountManager.getNewDeviceVerificationCode();
 349
 350         accountManager.addDevice(deviceIdentifier, deviceKey, identityKeyPair, Optional.of(account.getProfileKey().serialize()), verificationCode);
 351         account.setMultiDevice(true);
 352         account.save();
 353     }
 354
 355     private List<PreKeyRecord> generatePreKeys() {
 356         List<PreKeyRecord> records = new ArrayList<>(ServiceConfig.PREKEY_BATCH_SIZE);
 357
 358         final int offset = account.getPreKeyIdOffset();
 359         for (int i = 0; i < ServiceConfig.PREKEY_BATCH_SIZE; i++) {
 360             int preKeyId = (offset + i) % Medium.MAX_VALUE;
 361             ECKeyPair keyPair = Curve.generateKeyPair();
 362             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
 363
 364             records.add(record);
 365         }
 366
 367         account.addPreKeys(records);
 368         account.save();
 369
 370         return records;
 371     }
 372
 373     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 374         try {
 375             ECKeyPair keyPair = Curve.generateKeyPair();
 376             byte[] signature = Curve.calculateSignature(identityKeyPair.getPrivateKey(), keyPair.getPublicKey().serialize());
 377             SignedPreKeyRecord record = new SignedPreKeyRecord(account.getNextSignedPreKeyId(), System.currentTimeMillis(), keyPair, signature);
 378
 379             account.addSignedPreKey(record);
 380             account.save();
 381
 382             return record;
 383         } catch (InvalidKeyException e) {
 384             throw new AssertionError(e);
 385         }
 386     }
 387
 388     public void verifyAccount(String verificationCode, String pin) throws IOException {
 389         verificationCode = verificationCode.replace("-", "");
 390         account.setSignalingKey(KeyUtils.createSignalingKey());
 391         // TODO make unrestricted unidentified access configurable
 392         VerifyAccountResponse response = accountManager.verifyAccountWithCode(verificationCode, account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, pin, null, getSelfUnidentifiedAccessKey(), false, capabilities, discoverableByPhoneNumber);
 393
 394         UUID uuid = UuidUtil.parseOrNull(response.getUuid());
 395         // TODO response.isStorageCapable()
 396         //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID)));
 397         account.setRegistered(true);
 398         account.setUuid(uuid);
 399         account.setRegistrationLockPin(pin);
 400         account.getSignalProtocolStore().saveIdentity(account.getSelfAddress(), getIdentityKeyPair().getPublicKey(), TrustLevel.TRUSTED_VERIFIED);
 401
 402         refreshPreKeys();
 403         account.save();
 404     }
 405
 406     public void setRegistrationLockPin(Optional<String> pin) throws IOException {
 407         if (pin.isPresent()) {
 408             account.setRegistrationLockPin(pin.get());
 409             throw new RuntimeException("Not implemented anymore, will be replaced with KBS");
 410         } else {
 411             account.setRegistrationLockPin(null);
 412             accountManager.removeRegistrationLockV1();
 413         }
 414         account.save();
 415     }
 416
 417     void refreshPreKeys() throws IOException {
 418         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 419         final IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 420         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 421
 422         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 423     }
 424
 425     private SignalServiceMessageReceiver getMessageReceiver() {
 426         // TODO implement ZkGroup support
 427         final ClientZkProfileOperations clientZkProfileOperations = null;
 428         return new SignalServiceMessageReceiver(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(), account.getDeviceId(), account.getSignalingKey(), userAgent, null, timer, clientZkProfileOperations);
 429     }
 430
 431     private SignalServiceMessageSender getMessageSender() {
 432         // TODO implement ZkGroup support
 433         final ClientZkProfileOperations clientZkProfileOperations = null;
 434         final ExecutorService executor = null;
 435         return new SignalServiceMessageSender(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(),
 436                 account.getDeviceId(), account.getSignalProtocolStore(), userAgent, account.isMultiDevice(), Optional.fromNullable(messagePipe), Optional.fromNullable(unidentifiedMessagePipe), Optional.absent(), clientZkProfileOperations, executor, ServiceConfig.MAX_ENVELOPE_SIZE);
 437     }
 438
 439     private SignalServiceProfile getEncryptedRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess) throws IOException {
 440         SignalServiceMessagePipe pipe = unidentifiedMessagePipe != null && unidentifiedAccess.isPresent() ? unidentifiedMessagePipe
 441                 : messagePipe;
 442
 443         if (pipe != null) {
 444             try {
 445                 return pipe.getProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).get(10, TimeUnit.SECONDS).getProfile();
 446             } catch (IOException | InterruptedException | ExecutionException | TimeoutException ignored) {
 447             }
 448         }
 449
 450         SignalServiceMessageReceiver receiver = getMessageReceiver();
 451         try {
 452             return receiver.retrieveProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).get(10, TimeUnit.SECONDS).getProfile();
 453         } catch (InterruptedException | ExecutionException | TimeoutException e) {
 454             throw new IOException("Failed to retrieve profile", e);
 455         }
 456     }
 457
 458     private SignalProfile getRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess, ProfileKey profileKey) throws IOException {
 459         SignalProfileEntry profileEntry = account.getProfileStore().getProfile(address);
 460         long now = new Date().getTime();
 461         // Profiles are cache for 24h before retrieving them again
 462         if (profileEntry == null || profileEntry.getProfile() == null || now - profileEntry.getLastUpdateTimestamp() > 24 * 60 * 60 * 1000) {
 463             SignalProfile profile = retrieveRecipientProfile(address, unidentifiedAccess, profileKey);
 464             account.getProfileStore().updateProfile(address, profileKey, now, profile);
 465             return profile;
 466         }
 467         return profileEntry.getProfile();
 468     }
 469
 470     private SignalProfile retrieveRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess, ProfileKey profileKey) throws IOException {
 471         final SignalServiceProfile encryptedProfile = getEncryptedRecipientProfile(address, unidentifiedAccess);
 472
 473         File avatarFile = null;
 474         try {
 475             avatarFile = encryptedProfile.getAvatar() == null ? null : retrieveProfileAvatar(address, encryptedProfile.getAvatar(), profileKey);
 476         } catch (Throwable e) {
 477             System.err.println("Failed to retrieve profile avatar, ignoring: " + e.getMessage());
 478         }
 479
 480         ProfileCipher profileCipher = new ProfileCipher(profileKey);
 481         try {
 482             return new SignalProfile(
 483                     encryptedProfile.getIdentityKey(),
 484                     encryptedProfile.getName() == null ? null : new String(profileCipher.decryptName(Base64.decode(encryptedProfile.getName()))),
 485                     avatarFile,
 486                     encryptedProfile.getUnidentifiedAccess() == null || !profileCipher.verifyUnidentifiedAccess(Base64.decode(encryptedProfile.getUnidentifiedAccess())) ? null : encryptedProfile.getUnidentifiedAccess(),
 487                     encryptedProfile.isUnrestrictedUnidentifiedAccess(),
 488                     encryptedProfile.getCapabilities());
 489         } catch (InvalidCiphertextException e) {
 490             return null;
 491         }
 492     }
 493
 494     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(byte[] groupId) throws IOException {
 495         File file = getGroupAvatarFile(groupId);
 496         if (!file.exists()) {
 497             return Optional.absent();
 498         }
 499
 500         return Optional.of(Utils.createAttachment(file));
 501     }
 502
 503     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(String number) throws IOException {
 504         File file = getContactAvatarFile(number);
 505         if (!file.exists()) {
 506             return Optional.absent();
 507         }
 508
 509         return Optional.of(Utils.createAttachment(file));
 510     }
 511
 512     private GroupInfo getGroupForSending(byte[] groupId) throws GroupNotFoundException, NotAGroupMemberException {
 513         GroupInfo g = account.getGroupStore().getGroup(groupId);
 514         if (g == null) {
 515             throw new GroupNotFoundException(groupId);
 516         }
 517         if (!g.isMember(account.getSelfAddress())) {
 518             throw new NotAGroupMemberException(groupId, g.name);
 519         }
 520         return g;
 521     }
 522
 523     public List<GroupInfo> getGroups() {
 524         return account.getGroupStore().getGroups();
 525     }
 526
 527     public long sendGroupMessage(String messageText, List<String> attachments,
 528                                  byte[] groupId)
 529             throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 530         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 531         if (attachments != null) {
 532             messageBuilder.withAttachments(Utils.getSignalServiceAttachments(attachments));
 533         }
 534         if (groupId != null) {
 535             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 536                     .withId(groupId)
 537                     .build();
 538             messageBuilder.asGroupMessage(group);
 539         }
 540
 541         final GroupInfo g = getGroupForSending(groupId);
 542
 543         messageBuilder.withExpiration(g.messageExpirationTime);
 544
 545         return sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 546     }
 547
 548     public void sendGroupMessageReaction(String emoji, boolean remove, String targetAuthor,
 549                                          long targetSentTimestamp, byte[] groupId)
 550             throws IOException, EncapsulatedExceptions, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 551         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);
 552         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 553                 .withReaction(reaction);
 554         if (groupId != null) {
 555             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 556                     .withId(groupId)
 557                     .build();
 558             messageBuilder.asGroupMessage(group);
 559         }
 560         final GroupInfo g = getGroupForSending(groupId);
 561         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 562     }
 563
 564     public void sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, EncapsulatedExceptions, NotAGroupMemberException {
 565         SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 566                 .withId(groupId)
 567                 .build();
 568
 569         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 570                 .asGroupMessage(group);
 571
 572         final GroupInfo g = getGroupForSending(groupId);
 573         g.removeMember(account.getSelfAddress());
 574         account.getGroupStore().updateGroup(g);
 575
 576         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 577     }
 578
 579     private byte[] sendUpdateGroupMessage(byte[] groupId, String name, Collection<SignalServiceAddress> members, String avatarFile) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 580         GroupInfo g;
 581         if (groupId == null) {
 582             // Create new group
 583             g = new GroupInfo(KeyUtils.createGroupId());
 584             g.addMembers(Collections.singleton(account.getSelfAddress()));
 585         } else {
 586             g = getGroupForSending(groupId);
 587         }
 588
 589         if (name != null) {
 590             g.name = name;
 591         }
 592
 593         if (members != null) {
 594             final Set<String> newE164Members = new HashSet<>();
 595             for (SignalServiceAddress member : members) {
 596                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 597                     continue;
 598                 }
 599                 newE164Members.add(member.getNumber().get());
 600             }
 601
 602             final List<ContactTokenDetails> contacts = accountManager.getContacts(newE164Members);
 603             if (contacts.size() != newE164Members.size()) {
 604                 // Some of the new members are not registered on Signal
 605                 for (ContactTokenDetails contact : contacts) {
 606                     newE164Members.remove(contact.getNumber());
 607                 }
 608                 throw new IOException("Failed to add members " + Util.join(", ", newE164Members) + " to group: Not registered on Signal");
 609             }
 610
 611             g.addMembers(members);
 612         }
 613
 614         if (avatarFile != null) {
 615             IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 616             File aFile = getGroupAvatarFile(g.groupId);
 617             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 618         }
 619
 620         account.getGroupStore().updateGroup(g);
 621
 622         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 623
 624         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 625         return g.groupId;
 626     }
 627
 628     void sendUpdateGroupMessage(byte[] groupId, SignalServiceAddress recipient) throws IOException, EncapsulatedExceptions, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 629         if (groupId == null) {
 630             return;
 631         }
 632         GroupInfo g = getGroupForSending(groupId);
 633
 634         if (!g.isMember(recipient)) {
 635             return;
 636         }
 637
 638         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 639
 640         // Send group message only to the recipient who requested it
 641         sendMessageLegacy(messageBuilder, Collections.singleton(recipient));
 642     }
 643
 644     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfo g) throws AttachmentInvalidException {
 645         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 646                 .withId(g.groupId)
 647                 .withName(g.name)
 648                 .withMembers(new ArrayList<>(g.getMembers()));
 649
 650         File aFile = getGroupAvatarFile(g.groupId);
 651         if (aFile.exists()) {
 652             try {
 653                 group.withAvatar(Utils.createAttachment(aFile));
 654             } catch (IOException e) {
 655                 throw new AttachmentInvalidException(aFile.toString(), e);
 656             }
 657         }
 658
 659         return SignalServiceDataMessage.newBuilder()
 660                 .asGroupMessage(group.build())
 661                 .withExpiration(g.messageExpirationTime);
 662     }
 663
 664     void sendGroupInfoRequest(byte[] groupId, SignalServiceAddress recipient) throws IOException, EncapsulatedExceptions {
 665         if (groupId == null) {
 666             return;
 667         }
 668
 669         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 670                 .withId(groupId);
 671
 672         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 673                 .asGroupMessage(group.build());
 674
 675         // Send group info request message to the recipient who sent us a message with this groupId
 676         sendMessageLegacy(messageBuilder, Collections.singleton(recipient));
 677     }
 678
 679     void sendReceipt(SignalServiceAddress remoteAddress, long messageId) throws IOException, UntrustedIdentityException {
 680         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
 681                 Collections.singletonList(messageId),
 682                 System.currentTimeMillis());
 683
 684         getMessageSender().sendReceipt(remoteAddress, getAccessFor(remoteAddress), receiptMessage);
 685     }
 686
 687     public long sendMessage(String messageText, List<String> attachments,
 688                             List<String> recipients)
 689             throws IOException, EncapsulatedExceptions, AttachmentInvalidException, InvalidNumberException {
 690         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 691         if (attachments != null) {
 692             List<SignalServiceAttachment> attachmentStreams = Utils.getSignalServiceAttachments(attachments);
 693
 694             // Upload attachments here, so we only upload once even for multiple recipients
 695             SignalServiceMessageSender messageSender = getMessageSender();
 696             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 697             for (SignalServiceAttachment attachment : attachmentStreams) {
 698                 if (attachment.isStream()) {
 699                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 700                 } else if (attachment.isPointer()) {
 701                     attachmentPointers.add(attachment.asPointer());
 702                 }
 703             }
 704
 705             messageBuilder.withAttachments(attachmentPointers);
 706         }
 707         return sendMessageLegacy(messageBuilder, getSignalServiceAddresses(recipients));
 708     }
 709
 710     public void sendMessageReaction(String emoji, boolean remove, String targetAuthor,
 711                                     long targetSentTimestamp, List<String> recipients)
 712             throws IOException, EncapsulatedExceptions, InvalidNumberException {
 713         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);
 714         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 715                 .withReaction(reaction);
 716         sendMessageLegacy(messageBuilder, getSignalServiceAddresses(recipients));
 717     }
 718
 719     public void sendEndSessionMessage(List<String> recipients) throws IOException, EncapsulatedExceptions, InvalidNumberException {
 720         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 721                 .asEndSessionMessage();
 722
 723         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
 724         try {
 725             sendMessageLegacy(messageBuilder, signalServiceAddresses);
 726         } catch (Exception e) {
 727             for (SignalServiceAddress address : signalServiceAddresses) {
 728                 handleEndSession(address);
 729             }
 730             account.save();
 731             throw e;
 732         }
 733     }
 734
 735     public String getContactName(String number) throws InvalidNumberException {
 736         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
 737         if (contact == null) {
 738             return "";
 739         } else {
 740             return contact.name;
 741         }
 742     }
 743
 744     public void setContactName(String number, String name) throws InvalidNumberException {
 745         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 746         ContactInfo contact = account.getContactStore().getContact(address);
 747         if (contact == null) {
 748             contact = new ContactInfo(address);
 749         }
 750         contact.name = name;
 751         account.getContactStore().updateContact(contact);
 752         account.save();
 753     }
 754
 755     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
 756         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
 757     }
 758
 759     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
 760         ContactInfo contact = account.getContactStore().getContact(address);
 761         if (contact == null) {
 762             contact = new ContactInfo(address);
 763         }
 764         contact.blocked = blocked;
 765         account.getContactStore().updateContact(contact);
 766         account.save();
 767     }
 768
 769     public void setGroupBlocked(final byte[] groupId, final boolean blocked) throws GroupNotFoundException {
 770         GroupInfo group = getGroup(groupId);
 771         if (group == null) {
 772             throw new GroupNotFoundException(groupId);
 773         }
 774
 775         group.blocked = blocked;
 776         account.getGroupStore().updateGroup(group);
 777         account.save();
 778     }
 779
 780     public byte[] updateGroup(byte[] groupId, String name, List<String> members, String avatar) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 781         if (groupId.length == 0) {
 782             groupId = null;
 783         }
 784         if (name.isEmpty()) {
 785             name = null;
 786         }
 787         if (members.isEmpty()) {
 788             members = null;
 789         }
 790         if (avatar.isEmpty()) {
 791             avatar = null;
 792         }
 793         return sendUpdateGroupMessage(groupId, name, members == null ? null : getSignalServiceAddresses(members), avatar);
 794     }
 795
 796     /**
 797      * Change the expiration timer for a contact
 798      */
 799     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
 800         ContactInfo contact = account.getContactStore().getContact(address);
 801         contact.messageExpirationTime = messageExpirationTimer;
 802         account.getContactStore().updateContact(contact);
 803         sendExpirationTimerUpdate(address);
 804         account.save();
 805     }
 806
 807     private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
 808         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 809                 .asExpirationUpdate();
 810         sendMessage(messageBuilder, Collections.singleton(address));
 811     }
 812
 813     /**
 814      * Change the expiration timer for a contact
 815      */
 816     public void setExpirationTimer(String number, int messageExpirationTimer) throws IOException, InvalidNumberException {
 817         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 818         setExpirationTimer(address, messageExpirationTimer);
 819     }
 820
 821     /**
 822      * Change the expiration timer for a group
 823      */
 824     public void setExpirationTimer(byte[] groupId, int messageExpirationTimer) {
 825         GroupInfo g = account.getGroupStore().getGroup(groupId);
 826         g.messageExpirationTime = messageExpirationTimer;
 827         account.getGroupStore().updateGroup(g);
 828     }
 829
 830     /**
 831      * Upload the sticker pack from path.
 832      *
 833      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
 834      * @return if successful, returns the URL to install the sticker pack in the signal app
 835      */
 836     public String uploadStickerPack(String path) throws IOException, StickerPackInvalidException {
 837         SignalServiceStickerManifestUpload manifest = getSignalServiceStickerManifestUpload(path);
 838
 839         SignalServiceMessageSender messageSender = getMessageSender();
 840
 841         byte[] packKey = KeyUtils.createStickerUploadKey();
 842         String packId = messageSender.uploadStickerManifest(manifest, packKey);
 843
 844         try {
 845             return new URI("https", "signal.art", "/addstickers/", "pack_id=" + URLEncoder.encode(packId, "utf-8") + "&pack_key=" + URLEncoder.encode(Hex.toStringCondensed(packKey), "utf-8"))
 846                     .toString();
 847         } catch (URISyntaxException e) {
 848             throw new AssertionError(e);
 849         }
 850     }
 851
 852     private SignalServiceStickerManifestUpload getSignalServiceStickerManifestUpload(final String path) throws IOException, StickerPackInvalidException {
 853         ZipFile zip = null;
 854         String rootPath = null;
 855
 856         final File file = new File(path);
 857         if (file.getName().endsWith(".zip")) {
 858             zip = new ZipFile(file);
 859         } else if (file.getName().equals("manifest.json")) {
 860             rootPath = file.getParent();
 861         } else {
 862             throw new StickerPackInvalidException("Could not find manifest.json");
 863         }
 864
 865         JsonStickerPack pack = parseStickerPack(rootPath, zip);
 866
 867         if (pack.stickers == null) {
 868             throw new StickerPackInvalidException("Must set a 'stickers' field.");
 869         }
 870
 871         if (pack.stickers.isEmpty()) {
 872             throw new StickerPackInvalidException("Must include stickers.");
 873         }
 874
 875         List<StickerInfo> stickers = new ArrayList<>(pack.stickers.size());
 876         for (JsonStickerPack.JsonSticker sticker : pack.stickers) {
 877             if (sticker.file == null) {
 878                 throw new StickerPackInvalidException("Must set a 'file' field on each sticker.");
 879             }
 880
 881             Pair<InputStream, Long> data;
 882             try {
 883                 data = getInputStreamAndLength(rootPath, zip, sticker.file);
 884             } catch (IOException ignored) {
 885                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
 886             }
 887
 888             String contentType = Utils.getFileMimeType(new File(sticker.file), null);
 889             StickerInfo stickerInfo = new StickerInfo(data.first(), data.second(), Optional.fromNullable(sticker.emoji).or(""), contentType);
 890             stickers.add(stickerInfo);
 891         }
 892
 893         StickerInfo cover = null;
 894         if (pack.cover != null) {
 895             if (pack.cover.file == null) {
 896                 throw new StickerPackInvalidException("Must set a 'file' field on the cover.");
 897             }
 898
 899             Pair<InputStream, Long> data;
 900             try {
 901                 data = getInputStreamAndLength(rootPath, zip, pack.cover.file);
 902             } catch (IOException ignored) {
 903                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
 904             }
 905
 906             String contentType = Utils.getFileMimeType(new File(pack.cover.file), null);
 907             cover = new StickerInfo(data.first(), data.second(), Optional.fromNullable(pack.cover.emoji).or(""), contentType);
 908         }
 909
 910         return new SignalServiceStickerManifestUpload(
 911                 pack.title,
 912                 pack.author,
 913                 cover,
 914                 stickers);
 915     }
 916
 917     private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException {
 918         InputStream inputStream;
 919         if (zip != null) {
 920             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));
 921         } else {
 922             inputStream = new FileInputStream((new File(rootPath, "manifest.json")));
 923         }
 924         return new ObjectMapper().readValue(inputStream, JsonStickerPack.class);
 925     }
 926
 927     private static Pair<InputStream, Long> getInputStreamAndLength(final String rootPath, final ZipFile zip, final String subfile) throws IOException {
 928         if (zip != null) {
 929             final ZipEntry entry = zip.getEntry(subfile);
 930             return new Pair<>(zip.getInputStream(entry), entry.getSize());
 931         } else {
 932             final File file = new File(rootPath, subfile);
 933             return new Pair<>(new FileInputStream(file), file.length());
 934         }
 935     }
 936
 937     void requestSyncGroups() throws IOException {
 938         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS).build();
 939         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 940         try {
 941             sendSyncMessage(message);
 942         } catch (UntrustedIdentityException e) {
 943             e.printStackTrace();
 944         }
 945     }
 946
 947     void requestSyncContacts() throws IOException {
 948         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS).build();
 949         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 950         try {
 951             sendSyncMessage(message);
 952         } catch (UntrustedIdentityException e) {
 953             e.printStackTrace();
 954         }
 955     }
 956
 957     void requestSyncBlocked() throws IOException {
 958         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED).build();
 959         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 960         try {
 961             sendSyncMessage(message);
 962         } catch (UntrustedIdentityException e) {
 963             e.printStackTrace();
 964         }
 965     }
 966
 967     void requestSyncConfiguration() throws IOException {
 968         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION).build();
 969         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 970         try {
 971             sendSyncMessage(message);
 972         } catch (UntrustedIdentityException e) {
 973             e.printStackTrace();
 974         }
 975     }
 976
 977     private byte[] getSenderCertificate() {
 978         // TODO support UUID capable sender certificates
 979         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
 980         byte[] certificate;
 981         try {
 982             certificate = accountManager.getSenderCertificate();
 983         } catch (IOException e) {
 984             System.err.println("Failed to get sender certificate: " + e);
 985             return null;
 986         }
 987         // TODO cache for a day
 988         return certificate;
 989     }
 990
 991     private byte[] getSelfUnidentifiedAccessKey() {
 992         return UnidentifiedAccess.deriveAccessKeyFrom(account.getProfileKey());
 993     }
 994
 995     private byte[] getTargetUnidentifiedAccessKey(SignalServiceAddress recipient) {
 996         ContactInfo contact = account.getContactStore().getContact(recipient);
 997         if (contact == null || contact.profileKey == null) {
 998             return null;
 999         }
1000         ProfileKey theirProfileKey;
1001         try {
1002             theirProfileKey = new ProfileKey(Base64.decode(contact.profileKey));
1003         } catch (InvalidInputException | IOException e) {
1004             throw new AssertionError(e);
1005         }
1006         SignalProfile targetProfile;
1007         try {
1008             targetProfile = getRecipientProfile(recipient, Optional.absent(), theirProfileKey);
1009         } catch (IOException e) {
1010             System.err.println("Failed to get recipient profile: " + e);
1011             return null;
1012         }
1013
1014         if (targetProfile == null || targetProfile.getUnidentifiedAccess() == null) {
1015             return null;
1016         }
1017
1018         if (targetProfile.isUnrestrictedUnidentifiedAccess()) {
1019             return KeyUtils.createUnrestrictedUnidentifiedAccess();
1020         }
1021
1022         return UnidentifiedAccess.deriveAccessKeyFrom(theirProfileKey);
1023     }
1024
1025     private Optional<UnidentifiedAccessPair> getAccessForSync() {
1026         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1027         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1028
1029         if (selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1030             return Optional.absent();
1031         }
1032
1033         try {
1034             return Optional.of(new UnidentifiedAccessPair(
1035                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1036                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1037             ));
1038         } catch (InvalidCertificateException e) {
1039             return Optional.absent();
1040         }
1041     }
1042
1043     private List<Optional<UnidentifiedAccessPair>> getAccessFor(Collection<SignalServiceAddress> recipients) {
1044         List<Optional<UnidentifiedAccessPair>> result = new ArrayList<>(recipients.size());
1045         for (SignalServiceAddress recipient : recipients) {
1046             result.add(getAccessFor(recipient));
1047         }
1048         return result;
1049     }
1050
1051     private Optional<UnidentifiedAccessPair> getAccessFor(SignalServiceAddress recipient) {
1052         byte[] recipientUnidentifiedAccessKey = getTargetUnidentifiedAccessKey(recipient);
1053         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1054         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1055
1056         if (recipientUnidentifiedAccessKey == null || selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1057             return Optional.absent();
1058         }
1059
1060         try {
1061             return Optional.of(new UnidentifiedAccessPair(
1062                     new UnidentifiedAccess(recipientUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1063                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1064             ));
1065         } catch (InvalidCertificateException e) {
1066             return Optional.absent();
1067         }
1068     }
1069
1070     private Optional<UnidentifiedAccess> getUnidentifiedAccess(SignalServiceAddress recipient) {
1071         Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
1072
1073         if (unidentifiedAccess.isPresent()) {
1074             return unidentifiedAccess.get().getTargetUnidentifiedAccess();
1075         }
1076
1077         return Optional.absent();
1078     }
1079
1080     private void sendSyncMessage(SignalServiceSyncMessage message)
1081             throws IOException, UntrustedIdentityException {
1082         SignalServiceMessageSender messageSender = getMessageSender();
1083         try {
1084             messageSender.sendMessage(message, getAccessForSync());
1085         } catch (UntrustedIdentityException e) {
1086             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1087             throw e;
1088         }
1089     }
1090
1091     /**
1092      * This method throws an EncapsulatedExceptions exception instead of returning a list of SendMessageResult.
1093      */
1094     private long sendMessageLegacy(SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients)
1095             throws EncapsulatedExceptions, IOException {
1096         final long timestamp = System.currentTimeMillis();
1097         messageBuilder.withTimestamp(timestamp);
1098         List<SendMessageResult> results = sendMessage(messageBuilder, recipients);
1099
1100         List<UntrustedIdentityException> untrustedIdentities = new LinkedList<>();
1101         List<UnregisteredUserException> unregisteredUsers = new LinkedList<>();
1102         List<NetworkFailureException> networkExceptions = new LinkedList<>();
1103
1104         for (SendMessageResult result : results) {
1105             if (result.isUnregisteredFailure()) {
1106                 unregisteredUsers.add(new UnregisteredUserException(result.getAddress().getLegacyIdentifier(), null));
1107             } else if (result.isNetworkFailure()) {
1108                 networkExceptions.add(new NetworkFailureException(result.getAddress().getLegacyIdentifier(), null));
1109             } else if (result.getIdentityFailure() != null) {
1110                 untrustedIdentities.add(new UntrustedIdentityException("Untrusted", result.getAddress().getLegacyIdentifier(), result.getIdentityFailure().getIdentityKey()));
1111             }
1112         }
1113         if (!untrustedIdentities.isEmpty() || !unregisteredUsers.isEmpty() || !networkExceptions.isEmpty()) {
1114             throw new EncapsulatedExceptions(untrustedIdentities, unregisteredUsers, networkExceptions);
1115         }
1116         return timestamp;
1117     }
1118
1119     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1120         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1121
1122         for (String number : numbers) {
1123             signalServiceAddresses.add(canonicalizeAndResolveSignalServiceAddress(number));
1124         }
1125         return signalServiceAddresses;
1126     }
1127
1128     private List<SendMessageResult> sendMessage(SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients)
1129             throws IOException {
1130         if (messagePipe == null) {
1131             messagePipe = getMessageReceiver().createMessagePipe();
1132         }
1133         if (unidentifiedMessagePipe == null) {
1134             unidentifiedMessagePipe = getMessageReceiver().createUnidentifiedMessagePipe();
1135         }
1136         SignalServiceDataMessage message = null;
1137         try {
1138             message = messageBuilder.build();
1139             if (message.getGroupContext().isPresent()) {
1140                 try {
1141                     SignalServiceMessageSender messageSender = getMessageSender();
1142                     final boolean isRecipientUpdate = false;
1143                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients), getAccessFor(recipients), isRecipientUpdate, message);
1144                     for (SendMessageResult r : result) {
1145                         if (r.getIdentityFailure() != null) {
1146                             account.getSignalProtocolStore().saveIdentity(r.getAddress(), r.getIdentityFailure().getIdentityKey(), TrustLevel.UNTRUSTED);
1147                         }
1148                     }
1149                     return result;
1150                 } catch (UntrustedIdentityException e) {
1151                     account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1152                     return Collections.emptyList();
1153                 }
1154             } else {
1155                 // Send to all individually, so sync messages are sent correctly
1156                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1157                 for (SignalServiceAddress address : recipients) {
1158                     ContactInfo contact = account.getContactStore().getContact(address);
1159                     if (contact != null) {
1160                         messageBuilder.withExpiration(contact.messageExpirationTime);
1161                         messageBuilder.withProfileKey(account.getProfileKey().serialize());
1162                     } else {
1163                         messageBuilder.withExpiration(0);
1164                         messageBuilder.withProfileKey(null);
1165                     }
1166                     message = messageBuilder.build();
1167                     if (address.matches(account.getSelfAddress())) {
1168                         results.add(sendSelfMessage(message));
1169                     } else {
1170                         results.add(sendMessage(address, message));
1171                     }
1172                 }
1173                 return results;
1174             }
1175         } finally {
1176             if (message != null && message.isEndSession()) {
1177                 for (SignalServiceAddress recipient : recipients) {
1178                     handleEndSession(recipient);
1179                 }
1180             }
1181             account.save();
1182         }
1183     }
1184
1185     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1186         SignalServiceMessageSender messageSender = getMessageSender();
1187
1188         SignalServiceAddress recipient = account.getSelfAddress();
1189
1190         final Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
1191         SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1192                 message.getTimestamp(),
1193                 message,
1194                 message.getExpiresInSeconds(),
1195                 Collections.singletonMap(recipient, unidentifiedAccess.isPresent()),
1196                 false);
1197         SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1198
1199         try {
1200             long startTime = System.currentTimeMillis();
1201             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1202             return SendMessageResult.success(recipient, unidentifiedAccess.isPresent(), false, System.currentTimeMillis() - startTime);
1203         } catch (UntrustedIdentityException e) {
1204             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1205             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1206         }
1207     }
1208
1209     private SendMessageResult sendMessage(SignalServiceAddress address, SignalServiceDataMessage message) throws IOException {
1210         SignalServiceMessageSender messageSender = getMessageSender();
1211
1212         try {
1213             return messageSender.sendMessage(address, getAccessFor(address), message);
1214         } catch (UntrustedIdentityException e) {
1215             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1216             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1217         }
1218     }
1219
1220     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1221         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(), account.getSignalProtocolStore(), Utils.getCertificateValidator());
1222         try {
1223             return cipher.decrypt(envelope);
1224         } catch (ProtocolUntrustedIdentityException e) {
1225             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1226                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e.getCause();
1227                 account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(identityException.getName()), identityException.getUntrustedIdentity(), TrustLevel.UNTRUSTED);
1228                 throw identityException;
1229             }
1230             throw new AssertionError(e);
1231         }
1232     }
1233
1234     private void handleEndSession(SignalServiceAddress source) {
1235         account.getSignalProtocolStore().deleteAllSessions(source);
1236     }
1237
1238     private List<HandleAction> handleSignalServiceDataMessage(SignalServiceDataMessage message, boolean isSync, SignalServiceAddress source, SignalServiceAddress destination, boolean ignoreAttachments) {
1239         List<HandleAction> actions = new ArrayList<>();
1240         if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1241             SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1242             GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
1243             switch (groupInfo.getType()) {
1244                 case UPDATE:
1245                     if (group == null) {
1246                         group = new GroupInfo(groupInfo.getGroupId());
1247                     }
1248
1249                     if (groupInfo.getAvatar().isPresent()) {
1250                         SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1251                         if (avatar.isPointer()) {
1252                             try {
1253                                 retrieveGroupAvatarAttachment(avatar.asPointer(), group.groupId);
1254                             } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1255                                 System.err.println("Failed to retrieve group avatar (" + avatar.asPointer().getRemoteId() + "): " + e.getMessage());
1256                             }
1257                         }
1258                     }
1259
1260                     if (groupInfo.getName().isPresent()) {
1261                         group.name = groupInfo.getName().get();
1262                     }
1263
1264                     if (groupInfo.getMembers().isPresent()) {
1265                         group.addMembers(groupInfo.getMembers().get()
1266                                 .stream()
1267                                 .map(this::resolveSignalServiceAddress)
1268                                 .collect(Collectors.toSet()));
1269                     }
1270
1271                     account.getGroupStore().updateGroup(group);
1272                     break;
1273                 case DELIVER:
1274                     if (group == null && !isSync) {
1275                         actions.add(new SendGroupInfoRequestAction(source, groupInfo.getGroupId()));
1276                     }
1277                     break;
1278                 case QUIT:
1279                     if (group != null) {
1280                         group.removeMember(source);
1281                         account.getGroupStore().updateGroup(group);
1282                     }
1283                     break;
1284                 case REQUEST_INFO:
1285                     if (group != null && !isSync) {
1286                         actions.add(new SendGroupUpdateAction(source, group.groupId));
1287                     }
1288                     break;
1289             }
1290         }
1291         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1292         if (message.isEndSession()) {
1293             handleEndSession(conversationPartnerAddress);
1294         }
1295         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1296             if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1297                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1298                 GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
1299                 if (group == null) {
1300                     group = new GroupInfo(groupInfo.getGroupId());
1301                 }
1302                 if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1303                     group.messageExpirationTime = message.getExpiresInSeconds();
1304                     account.getGroupStore().updateGroup(group);
1305                 }
1306             } else {
1307                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1308                 if (contact == null) {
1309                     contact = new ContactInfo(conversationPartnerAddress);
1310                 }
1311                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1312                     contact.messageExpirationTime = message.getExpiresInSeconds();
1313                     account.getContactStore().updateContact(contact);
1314                 }
1315             }
1316         }
1317         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1318             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1319                 if (attachment.isPointer()) {
1320                     try {
1321                         retrieveAttachment(attachment.asPointer());
1322                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1323                         System.err.println("Failed to retrieve attachment (" + attachment.asPointer().getRemoteId() + "): " + e.getMessage());
1324                     }
1325                 }
1326             }
1327         }
1328         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1329             if (source.matches(account.getSelfAddress())) {
1330                 try {
1331                     this.account.setProfileKey(new ProfileKey(message.getProfileKey().get()));
1332                 } catch (InvalidInputException ignored) {
1333                 }
1334                 ContactInfo contact = account.getContactStore().getContact(source);
1335                 if (contact != null) {
1336                     contact.profileKey = Base64.encodeBytes(message.getProfileKey().get());
1337                     account.getContactStore().updateContact(contact);
1338                 }
1339             } else {
1340                 ContactInfo contact = account.getContactStore().getContact(source);
1341                 if (contact == null) {
1342                     contact = new ContactInfo(source);
1343                 }
1344                 contact.profileKey = Base64.encodeBytes(message.getProfileKey().get());
1345                 account.getContactStore().updateContact(contact);
1346             }
1347         }
1348         if (message.getPreviews().isPresent()) {
1349             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1350             for (SignalServiceDataMessage.Preview preview : previews) {
1351                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1352                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1353                     try {
1354                         retrieveAttachment(attachment);
1355                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1356                         System.err.println("Failed to retrieve attachment (" + attachment.getRemoteId() + "): " + e.getMessage());
1357                     }
1358                 }
1359             }
1360         }
1361         return actions;
1362     }
1363
1364     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1365         final File cachePath = new File(getMessageCachePath());
1366         if (!cachePath.exists()) {
1367             return;
1368         }
1369         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
1370             if (!dir.isDirectory()) {
1371                 retryFailedReceivedMessage(handler, ignoreAttachments, dir);
1372                 continue;
1373             }
1374
1375             for (final File fileEntry : Objects.requireNonNull(dir.listFiles())) {
1376                 if (!fileEntry.isFile()) {
1377                     continue;
1378                 }
1379                 retryFailedReceivedMessage(handler, ignoreAttachments, fileEntry);
1380             }
1381             // Try to delete directory if empty
1382             dir.delete();
1383         }
1384     }
1385
1386     private void retryFailedReceivedMessage(final ReceiveMessageHandler handler, final boolean ignoreAttachments, final File fileEntry) {
1387         SignalServiceEnvelope envelope;
1388         try {
1389             envelope = Utils.loadEnvelope(fileEntry);
1390             if (envelope == null) {
1391                 return;
1392             }
1393         } catch (IOException e) {
1394             e.printStackTrace();
1395             return;
1396         }
1397         SignalServiceContent content = null;
1398         if (!envelope.isReceipt()) {
1399             try {
1400                 content = decryptMessage(envelope);
1401             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1402                 return;
1403             } catch (Exception er) {
1404                 // All other errors are not recoverable, so delete the cached message
1405                 try {
1406                     Files.delete(fileEntry.toPath());
1407                 } catch (IOException e) {
1408                     System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1409                 }
1410                 return;
1411             }
1412             List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1413             for (HandleAction action : actions) {
1414                 try {
1415                     action.execute(this);
1416                 } catch (Throwable e) {
1417                     e.printStackTrace();
1418                 }
1419             }
1420         }
1421         account.save();
1422         handler.handleMessage(envelope, content, null);
1423         try {
1424             Files.delete(fileEntry.toPath());
1425         } catch (IOException e) {
1426             System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1427         }
1428     }
1429
1430     public void receiveMessages(long timeout, TimeUnit unit, boolean returnOnTimeout, boolean ignoreAttachments, ReceiveMessageHandler handler) throws IOException {
1431         retryFailedReceivedMessages(handler, ignoreAttachments);
1432         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1433
1434         Set<HandleAction> queuedActions = null;
1435
1436         if (messagePipe == null) {
1437             messagePipe = messageReceiver.createMessagePipe();
1438         }
1439
1440         boolean hasCaughtUpWithOldMessages = false;
1441
1442         while (true) {
1443             SignalServiceEnvelope envelope;
1444             SignalServiceContent content = null;
1445             Exception exception = null;
1446             final long now = new Date().getTime();
1447             try {
1448                 Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1449                     // store message on disk, before acknowledging receipt to the server
1450                     try {
1451                         String source = envelope1.getSourceE164().isPresent() ? envelope1.getSourceE164().get() : "";
1452                         File cacheFile = getMessageCacheFile(source, now, envelope1.getTimestamp());
1453                         Utils.storeEnvelope(envelope1, cacheFile);
1454                     } catch (IOException e) {
1455                         System.err.println("Failed to store encrypted message in disk cache, ignoring: " + e.getMessage());
1456                     }
1457                 });
1458                 if (result.isPresent()) {
1459                     envelope = result.get();
1460                 } else {
1461                     // Received indicator that server queue is empty
1462                     hasCaughtUpWithOldMessages = true;
1463
1464                     if (queuedActions != null) {
1465                         for (HandleAction action : queuedActions) {
1466                             try {
1467                                 action.execute(this);
1468                             } catch (Throwable e) {
1469                                 e.printStackTrace();
1470                             }
1471                         }
1472                         account.save();
1473                         queuedActions.clear();
1474                         queuedActions = null;
1475                     }
1476
1477                     // Continue to wait another timeout for new messages
1478                     continue;
1479                 }
1480             } catch (TimeoutException e) {
1481                 if (returnOnTimeout)
1482                     return;
1483                 continue;
1484             } catch (InvalidVersionException e) {
1485                 System.err.println("Ignoring error: " + e.getMessage());
1486                 continue;
1487             }
1488
1489             if (envelope.hasSource()) {
1490                 // Store uuid if we don't have it already
1491                 SignalServiceAddress source = envelope.getSourceAddress();
1492                 resolveSignalServiceAddress(source);
1493             }
1494             if (!envelope.isReceipt()) {
1495                 try {
1496                     content = decryptMessage(envelope);
1497                 } catch (Exception e) {
1498                     exception = e;
1499                 }
1500                 List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1501                 if (hasCaughtUpWithOldMessages) {
1502                     for (HandleAction action : actions) {
1503                         try {
1504                             action.execute(this);
1505                         } catch (Throwable e) {
1506                             e.printStackTrace();
1507                         }
1508                     }
1509                 } else {
1510                     if (queuedActions == null) {
1511                         queuedActions = new HashSet<>();
1512                     }
1513                     queuedActions.addAll(actions);
1514                 }
1515             }
1516             account.save();
1517             if (!isMessageBlocked(envelope, content)) {
1518                 handler.handleMessage(envelope, content, exception);
1519             }
1520             if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1521                 File cacheFile = null;
1522                 try {
1523                     String source = envelope.getSourceE164().isPresent() ? envelope.getSourceE164().get() : "";
1524                     cacheFile = getMessageCacheFile(source, now, envelope.getTimestamp());
1525                     Files.delete(cacheFile.toPath());
1526                     // Try to delete directory if empty
1527                     new File(getMessageCachePath()).delete();
1528                 } catch (IOException e) {
1529                     System.err.println("Failed to delete cached message file “" + cacheFile + "”: " + e.getMessage());
1530                 }
1531             }
1532         }
1533     }
1534
1535     private boolean isMessageBlocked(SignalServiceEnvelope envelope, SignalServiceContent content) {
1536         SignalServiceAddress source;
1537         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1538             source = envelope.getSourceAddress();
1539         } else if (content != null) {
1540             source = content.getSender();
1541         } else {
1542             return false;
1543         }
1544         ContactInfo sourceContact = account.getContactStore().getContact(source);
1545         if (sourceContact != null && sourceContact.blocked) {
1546             return true;
1547         }
1548
1549         if (content != null && content.getDataMessage().isPresent()) {
1550             SignalServiceDataMessage message = content.getDataMessage().get();
1551             if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1552                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1553                 GroupInfo group = getGroup(groupInfo.getGroupId());
1554                 if (groupInfo.getType() == SignalServiceGroup.Type.DELIVER && group != null && group.blocked) {
1555                     return true;
1556                 }
1557             }
1558         }
1559         return false;
1560     }
1561
1562     private List<HandleAction> handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments) {
1563         List<HandleAction> actions = new ArrayList<>();
1564         if (content != null) {
1565             SignalServiceAddress sender;
1566             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1567                 sender = envelope.getSourceAddress();
1568             } else {
1569                 sender = content.getSender();
1570             }
1571             // Store uuid if we don't have it already
1572             resolveSignalServiceAddress(sender);
1573
1574             if (content.getDataMessage().isPresent()) {
1575                 SignalServiceDataMessage message = content.getDataMessage().get();
1576
1577                 if (content.isNeedsReceipt()) {
1578                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1579                 }
1580
1581                 actions.addAll(handleSignalServiceDataMessage(message, false, sender, account.getSelfAddress(), ignoreAttachments));
1582             }
1583             if (content.getSyncMessage().isPresent()) {
1584                 account.setMultiDevice(true);
1585                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1586                 if (syncMessage.getSent().isPresent()) {
1587                     SentTranscriptMessage message = syncMessage.getSent().get();
1588                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(), true, sender, message.getDestination().orNull(), ignoreAttachments));
1589                 }
1590                 if (syncMessage.getRequest().isPresent()) {
1591                     RequestMessage rm = syncMessage.getRequest().get();
1592                     if (rm.isContactsRequest()) {
1593                         actions.add(SendSyncContactsAction.create());
1594                     }
1595                     if (rm.isGroupsRequest()) {
1596                         actions.add(SendSyncGroupsAction.create());
1597                     }
1598                     if (rm.isBlockedListRequest()) {
1599                         actions.add(SendSyncBlockedListAction.create());
1600                     }
1601                     // TODO Handle rm.isConfigurationRequest();
1602                 }
1603                 if (syncMessage.getGroups().isPresent()) {
1604                     File tmpFile = null;
1605                     try {
1606                         tmpFile = IOUtils.createTempFile();
1607                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups().get().asPointer(), tmpFile)) {
1608                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1609                             DeviceGroup g;
1610                             while ((g = s.read()) != null) {
1611                                 GroupInfo syncGroup = account.getGroupStore().getGroup(g.getId());
1612                                 if (syncGroup == null) {
1613                                     syncGroup = new GroupInfo(g.getId());
1614                                 }
1615                                 if (g.getName().isPresent()) {
1616                                     syncGroup.name = g.getName().get();
1617                                 }
1618                                 syncGroup.addMembers(g.getMembers()
1619                                         .stream()
1620                                         .map(this::resolveSignalServiceAddress)
1621                                         .collect(Collectors.toSet()));
1622                                 if (!g.isActive()) {
1623                                     syncGroup.removeMember(account.getSelfAddress());
1624                                 } else {
1625                                     // Add ourself to the member set as it's marked as active
1626                                     syncGroup.addMembers(Collections.singleton(account.getSelfAddress()));
1627                                 }
1628                                 syncGroup.blocked = g.isBlocked();
1629                                 if (g.getColor().isPresent()) {
1630                                     syncGroup.color = g.getColor().get();
1631                                 }
1632
1633                                 if (g.getAvatar().isPresent()) {
1634                                     retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId);
1635                                 }
1636                                 syncGroup.inboxPosition = g.getInboxPosition().orNull();
1637                                 syncGroup.archived = g.isArchived();
1638                                 account.getGroupStore().updateGroup(syncGroup);
1639                             }
1640                         }
1641                     } catch (Exception e) {
1642                         e.printStackTrace();
1643                     } finally {
1644                         if (tmpFile != null) {
1645                             try {
1646                                 Files.delete(tmpFile.toPath());
1647                             } catch (IOException e) {
1648                                 System.err.println("Failed to delete received groups temp file “" + tmpFile + "”: " + e.getMessage());
1649                             }
1650                         }
1651                     }
1652                 }
1653                 if (syncMessage.getBlockedList().isPresent()) {
1654                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1655                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1656                         setContactBlocked(resolveSignalServiceAddress(address), true);
1657                     }
1658                     for (byte[] groupId : blockedListMessage.getGroupIds()) {
1659                         try {
1660                             setGroupBlocked(groupId, true);
1661                         } catch (GroupNotFoundException e) {
1662                             System.err.println("BlockedListMessage contained groupID that was not found in GroupStore: " + Base64.encodeBytes(groupId));
1663                         }
1664                     }
1665                 }
1666                 if (syncMessage.getContacts().isPresent()) {
1667                     File tmpFile = null;
1668                     try {
1669                         tmpFile = IOUtils.createTempFile();
1670                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1671                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream().asPointer(), tmpFile)) {
1672                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1673                             if (contactsMessage.isComplete()) {
1674                                 account.getContactStore().clear();
1675                             }
1676                             DeviceContact c;
1677                             while ((c = s.read()) != null) {
1678                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
1679                                     account.setProfileKey(c.getProfileKey().get());
1680                                 }
1681                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
1682                                 ContactInfo contact = account.getContactStore().getContact(address);
1683                                 if (contact == null) {
1684                                     contact = new ContactInfo(address);
1685                                 }
1686                                 if (c.getName().isPresent()) {
1687                                     contact.name = c.getName().get();
1688                                 }
1689                                 if (c.getColor().isPresent()) {
1690                                     contact.color = c.getColor().get();
1691                                 }
1692                                 if (c.getProfileKey().isPresent()) {
1693                                     contact.profileKey = Base64.encodeBytes(c.getProfileKey().get().serialize());
1694                                 }
1695                                 if (c.getVerified().isPresent()) {
1696                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
1697                                     account.getSignalProtocolStore().setIdentityTrustLevel(verifiedMessage.getDestination(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1698                                 }
1699                                 if (c.getExpirationTimer().isPresent()) {
1700                                     contact.messageExpirationTime = c.getExpirationTimer().get();
1701                                 }
1702                                 contact.blocked = c.isBlocked();
1703                                 contact.inboxPosition = c.getInboxPosition().orNull();
1704                                 contact.archived = c.isArchived();
1705                                 account.getContactStore().updateContact(contact);
1706
1707                                 if (c.getAvatar().isPresent()) {
1708                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
1709                                 }
1710                             }
1711                         }
1712                     } catch (Exception e) {
1713                         e.printStackTrace();
1714                     } finally {
1715                         if (tmpFile != null) {
1716                             try {
1717                                 Files.delete(tmpFile.toPath());
1718                             } catch (IOException e) {
1719                                 System.err.println("Failed to delete received contacts temp file “" + tmpFile + "”: " + e.getMessage());
1720                             }
1721                         }
1722                     }
1723                 }
1724                 if (syncMessage.getVerified().isPresent()) {
1725                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
1726                     account.getSignalProtocolStore().setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1727                 }
1728                 if (syncMessage.getConfiguration().isPresent()) {
1729                     // TODO
1730                 }
1731             }
1732         }
1733         return actions;
1734     }
1735
1736     private File getContactAvatarFile(String number) {
1737         return new File(pathConfig.getAvatarsPath(), "contact-" + number);
1738     }
1739
1740     private File retrieveContactAvatarAttachment(SignalServiceAttachment attachment, String number) throws IOException, InvalidMessageException, MissingConfigurationException {
1741         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1742         if (attachment.isPointer()) {
1743             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1744             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
1745         } else {
1746             SignalServiceAttachmentStream stream = attachment.asStream();
1747             return Utils.retrieveAttachment(stream, getContactAvatarFile(number));
1748         }
1749     }
1750
1751     private File getGroupAvatarFile(byte[] groupId) {
1752         return new File(pathConfig.getAvatarsPath(), "group-" + Base64.encodeBytes(groupId).replace("/", "_"));
1753     }
1754
1755     private File retrieveGroupAvatarAttachment(SignalServiceAttachment attachment, byte[] groupId) throws IOException, InvalidMessageException, MissingConfigurationException {
1756         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1757         if (attachment.isPointer()) {
1758             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1759             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
1760         } else {
1761             SignalServiceAttachmentStream stream = attachment.asStream();
1762             return Utils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
1763         }
1764     }
1765
1766     private File getProfileAvatarFile(SignalServiceAddress address) {
1767         return new File(pathConfig.getAvatarsPath(), "profile-" + address.getLegacyIdentifier());
1768     }
1769
1770     private File retrieveProfileAvatar(SignalServiceAddress address, String avatarPath, ProfileKey profileKey) throws IOException {
1771         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1772         SignalServiceMessageReceiver receiver = getMessageReceiver();
1773         File outputFile = getProfileAvatarFile(address);
1774
1775         File tmpFile = IOUtils.createTempFile();
1776         try (InputStream input = receiver.retrieveProfileAvatar(avatarPath, tmpFile, profileKey, ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
1777             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
1778             IOUtils.copyStreamToFile(input, outputFile, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
1779         } finally {
1780             try {
1781                 Files.delete(tmpFile.toPath());
1782             } catch (IOException e) {
1783                 System.err.println("Failed to delete received avatar temp file “" + tmpFile + "”: " + e.getMessage());
1784             }
1785         }
1786         return outputFile;
1787     }
1788
1789     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
1790         return new File(pathConfig.getAttachmentsPath(), attachmentId.toString());
1791     }
1792
1793     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException, MissingConfigurationException {
1794         IOUtils.createPrivateDirectories(pathConfig.getAttachmentsPath());
1795         return retrieveAttachment(pointer, getAttachmentFile(pointer.getRemoteId()), true);
1796     }
1797
1798     private File retrieveAttachment(SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview) throws IOException, InvalidMessageException, MissingConfigurationException {
1799         if (storePreview && pointer.getPreview().isPresent()) {
1800             File previewFile = new File(outputFile + ".preview");
1801             try (OutputStream output = new FileOutputStream(previewFile)) {
1802                 byte[] preview = pointer.getPreview().get();
1803                 output.write(preview, 0, preview.length);
1804             } catch (FileNotFoundException e) {
1805                 e.printStackTrace();
1806                 return null;
1807             }
1808         }
1809
1810         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1811
1812         File tmpFile = IOUtils.createTempFile();
1813         try (InputStream input = messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE)) {
1814             IOUtils.copyStreamToFile(input, outputFile);
1815         } finally {
1816             try {
1817                 Files.delete(tmpFile.toPath());
1818             } catch (IOException e) {
1819                 System.err.println("Failed to delete received attachment temp file “" + tmpFile + "”: " + e.getMessage());
1820             }
1821         }
1822         return outputFile;
1823     }
1824
1825     private InputStream retrieveAttachmentAsStream(SignalServiceAttachmentPointer pointer, File tmpFile) throws IOException, InvalidMessageException, MissingConfigurationException {
1826         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1827         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
1828     }
1829
1830     void sendGroups() throws IOException, UntrustedIdentityException {
1831         File groupsFile = IOUtils.createTempFile();
1832
1833         try {
1834             try (OutputStream fos = new FileOutputStream(groupsFile)) {
1835                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
1836                 for (GroupInfo record : account.getGroupStore().getGroups()) {
1837                     out.write(new DeviceGroup(record.groupId, Optional.fromNullable(record.name),
1838                             new ArrayList<>(record.getMembers()), createGroupAvatarAttachment(record.groupId),
1839                             record.isMember(account.getSelfAddress()), Optional.of(record.messageExpirationTime),
1840                             Optional.fromNullable(record.color), record.blocked, Optional.fromNullable(record.inboxPosition), record.archived));
1841                 }
1842             }
1843
1844             if (groupsFile.exists() && groupsFile.length() > 0) {
1845                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
1846                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1847                             .withStream(groupsFileStream)
1848                             .withContentType("application/octet-stream")
1849                             .withLength(groupsFile.length())
1850                             .build();
1851
1852                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
1853                 }
1854             }
1855         } finally {
1856             try {
1857                 Files.delete(groupsFile.toPath());
1858             } catch (IOException e) {
1859                 System.err.println("Failed to delete groups temp file “" + groupsFile + "”: " + e.getMessage());
1860             }
1861         }
1862     }
1863
1864     public void sendContacts() throws IOException, UntrustedIdentityException {
1865         File contactsFile = IOUtils.createTempFile();
1866
1867         try {
1868             try (OutputStream fos = new FileOutputStream(contactsFile)) {
1869                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
1870                 for (ContactInfo record : account.getContactStore().getContacts()) {
1871                     VerifiedMessage verifiedMessage = null;
1872                     JsonIdentityKeyStore.Identity currentIdentity = account.getSignalProtocolStore().getIdentity(record.getAddress());
1873                     if (currentIdentity != null) {
1874                         verifiedMessage = new VerifiedMessage(record.getAddress(), currentIdentity.getIdentityKey(), currentIdentity.getTrustLevel().toVerifiedState(), currentIdentity.getDateAdded().getTime());
1875                     }
1876
1877                     ProfileKey profileKey = null;
1878                     try {
1879                         profileKey = record.profileKey == null ? null : new ProfileKey(Base64.decode(record.profileKey));
1880                     } catch (InvalidInputException ignored) {
1881                     }
1882                     out.write(new DeviceContact(record.getAddress(), Optional.fromNullable(record.name),
1883                             createContactAvatarAttachment(record.number), Optional.fromNullable(record.color),
1884                             Optional.fromNullable(verifiedMessage), Optional.fromNullable(profileKey), record.blocked,
1885                             Optional.of(record.messageExpirationTime),
1886                             Optional.fromNullable(record.inboxPosition), record.archived));
1887                 }
1888
1889                 if (account.getProfileKey() != null) {
1890                     // Send our own profile key as well
1891                     out.write(new DeviceContact(account.getSelfAddress(),
1892                             Optional.absent(), Optional.absent(),
1893                             Optional.absent(), Optional.absent(),
1894                             Optional.of(account.getProfileKey()),
1895                             false, Optional.absent(), Optional.absent(), false));
1896                 }
1897             }
1898
1899             if (contactsFile.exists() && contactsFile.length() > 0) {
1900                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
1901                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1902                             .withStream(contactsFileStream)
1903                             .withContentType("application/octet-stream")
1904                             .withLength(contactsFile.length())
1905                             .build();
1906
1907                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
1908                 }
1909             }
1910         } finally {
1911             try {
1912                 Files.delete(contactsFile.toPath());
1913             } catch (IOException e) {
1914                 System.err.println("Failed to delete contacts temp file “" + contactsFile + "”: " + e.getMessage());
1915             }
1916         }
1917     }
1918
1919     void sendBlockedList() throws IOException, UntrustedIdentityException {
1920         List<SignalServiceAddress> addresses = new ArrayList<>();
1921         for (ContactInfo record : account.getContactStore().getContacts()) {
1922             if (record.blocked) {
1923                 addresses.add(record.getAddress());
1924             }
1925         }
1926         List<byte[]> groupIds = new ArrayList<>();
1927         for (GroupInfo record : account.getGroupStore().getGroups()) {
1928             if (record.blocked) {
1929                 groupIds.add(record.groupId);
1930             }
1931         }
1932         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
1933     }
1934
1935     private void sendVerifiedMessage(SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel) throws IOException, UntrustedIdentityException {
1936         VerifiedMessage verifiedMessage = new VerifiedMessage(destination, identityKey, trustLevel.toVerifiedState(), System.currentTimeMillis());
1937         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
1938     }
1939
1940     public List<ContactInfo> getContacts() {
1941         return account.getContactStore().getContacts();
1942     }
1943
1944     public ContactInfo getContact(String number) {
1945         return account.getContactStore().getContact(Util.getSignalServiceAddressFromIdentifier(number));
1946     }
1947
1948     public GroupInfo getGroup(byte[] groupId) {
1949         return account.getGroupStore().getGroup(groupId);
1950     }
1951
1952     public List<JsonIdentityKeyStore.Identity> getIdentities() {
1953         return account.getSignalProtocolStore().getIdentities();
1954     }
1955
1956     public List<JsonIdentityKeyStore.Identity> getIdentities(String number) throws InvalidNumberException {
1957         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
1958     }
1959
1960     /**
1961      * Trust this the identity with this fingerprint
1962      *
1963      * @param name        username of the identity
1964      * @param fingerprint Fingerprint
1965      */
1966     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
1967         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
1968         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
1969         if (ids == null) {
1970             return false;
1971         }
1972         for (JsonIdentityKeyStore.Identity id : ids) {
1973             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
1974                 continue;
1975             }
1976
1977             account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1978             try {
1979                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1980             } catch (IOException | UntrustedIdentityException e) {
1981                 e.printStackTrace();
1982             }
1983             account.save();
1984             return true;
1985         }
1986         return false;
1987     }
1988
1989     /**
1990      * Trust this the identity with this safety number
1991      *
1992      * @param name         username of the identity
1993      * @param safetyNumber Safety number
1994      */
1995     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
1996         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
1997         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
1998         if (ids == null) {
1999             return false;
2000         }
2001         for (JsonIdentityKeyStore.Identity id : ids) {
2002             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
2003                 continue;
2004             }
2005
2006             account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2007             try {
2008                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2009             } catch (IOException | UntrustedIdentityException e) {
2010                 e.printStackTrace();
2011             }
2012             account.save();
2013             return true;
2014         }
2015         return false;
2016     }
2017
2018     /**
2019      * Trust all keys of this identity without verification
2020      *
2021      * @param name username of the identity
2022      */
2023     public boolean trustIdentityAllKeys(String name) {
2024         SignalServiceAddress address = resolveSignalServiceAddress(name);
2025         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2026         if (ids == null) {
2027             return false;
2028         }
2029         for (JsonIdentityKeyStore.Identity id : ids) {
2030             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2031                 account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2032                 try {
2033                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2034                 } catch (IOException | UntrustedIdentityException e) {
2035                     e.printStackTrace();
2036                 }
2037             }
2038         }
2039         account.save();
2040         return true;
2041     }
2042
2043     public String computeSafetyNumber(SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
2044         return Utils.computeSafetyNumber(account.getSelfAddress(), getIdentityKeyPair().getPublicKey(), theirAddress, theirIdentityKey);
2045     }
2046
2047     void saveAccount() {
2048         account.save();
2049     }
2050
2051     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2052         String canonicalizedNumber = UuidUtil.isUuid(identifier) ? identifier : Util.canonicalizeNumber(identifier, account.getUsername());
2053         return resolveSignalServiceAddress(canonicalizedNumber);
2054     }
2055
2056     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2057         SignalServiceAddress address = Util.getSignalServiceAddressFromIdentifier(identifier);
2058
2059         return resolveSignalServiceAddress(address);
2060     }
2061
2062     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2063         if (address.matches(account.getSelfAddress())) {
2064             return account.getSelfAddress();
2065         }
2066
2067         return account.getRecipientStore().resolveServiceAddress(address);
2068     }
2069
2070     @Override
2071     public void close() throws IOException {
2072         if (messagePipe != null) {
2073             messagePipe.shutdown();
2074             messagePipe = null;
2075         }
2076
2077         if (unidentifiedMessagePipe != null) {
2078             unidentifiedMessagePipe.shutdown();
2079             unidentifiedMessagePipe = null;
2080         }
2081
2082         account.close();
2083     }
2084
2085     public interface ReceiveMessageHandler {
2086
2087         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2088     }
2089 }